Analysis of intergranular crack propagation in brittle polycrystals with a generalized finite element method and a network algorithm

Z. Shabir, E. Van Der Giessen, Carlos Armando Duarte, A. Simone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two different approaches to intergranular crack propagation in brittle polycrystals are contrasted. Crack paths resulting from a method that allows a detailed description of the stress field within a polycrystal are compared to cracks dictated by topological considerations. In the first approach, a fracture path is determined with a Generalized Finite Element Method for polycrystals considering isotropic elastic grains. In the second approach a fracture path is generated using Dijkstra's shortest path algorithm. This algorithm yields minimum fracture energy crack paths. A series of simulations is performed to assess the influence of the method of analysis on the crack path.

Original languageEnglish (US)
Title of host publicationComputational Plasticity X - Fundamentals and Applications
StatePublished - Dec 1 2009
Event10th International Conference on Computational Plasticity, COMPLAS X - Barcelona, Spain
Duration: Sep 2 2009Sep 4 2009

Publication series

NameComputational Plasticity X - Fundamentals and Applications

Other

Other10th International Conference on Computational Plasticity, COMPLAS X
CountrySpain
CityBarcelona
Period9/2/099/4/09

Keywords

  • Cracks
  • Generalized finite element method
  • Network algorithm
  • Polycrystalline materials

ASJC Scopus subject areas

  • Polymers and Plastics

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